USGS 17-3; Smith's Ranch, in the vicinity of Cathedral Bluffs (Eocene of the United States)

Also known as USGS 17.3

Where: Colorado (39.6° N, 108.4° W: paleocoordinates 43.4° N, 94.9° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Green River Formation, Bridgerian (50.3 - 46.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine - large; lithified shale

Size classes: macrofossils, mesofossils

Preservation: mold/impression

Collected by D.E. Winchester; reposited in the USNM

Primary reference: T. D. A. Cockerell. 1921. Eocene Insects from the Rocky Mountains. Proceedings of the United States National Museum 57:233-260 [C. Labandeira/C. Labandeira/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 105005: authorized by Matthew Clapham, entered by Matthew Clapham on 13.02.2011, edited by Alex Aguilar and Jered Karr

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
 Hemiptera -
Protoliarus humatus n. gen. n. sp.
Protoliarus humatus n. gen. n. sp. Cockerell 1921 planthopper
USNM 66560
 Hemiptera - Ricaniidae
? Hammapteryx lepidoides n. sp. Cockerell 1921 planthopper
USNM 66554
? Hammapteryx ceryniiformis n. sp. Cockerell 1921 planthopper
USNM 66555
Dilaropsis ornatus n. gen. n. sp. Cockerell 1921 planthopper
USNM 66562
 Hemiptera - Nogodinidae
Lithopsis delicata n. sp. Cockerell 1921 planthopper
USNM 61556
 Hemiptera - Cercopidae
Cercopis cephalinus n. sp. Cockerell 1921 froghopper
USNM 66564
 Hymenoptera - Formicidae
"Eoformica eocenica n. gen. n. sp." = Eoformica pinguis2
"Eoformica eocenica n. gen. n. sp." = Eoformica pinguis2 Scudder 1877 ant
USNM 66932
 Coleoptera - Curculionidae
Sciabregma tenuicornis n. sp.2 Cockerell 1921 snout beetle
USNM 66930
 Coleoptera - Carabidae
Lebia protospiloptera n. sp.2 Cockerell 1921 colorful foliage ground beetle
USNM 66928
 Diptera - Culicidae
Culex winchesteri n. sp.1 Cockerell 1919 mosquito
USNM 66569
 Diptera - Keroplatidae
Palaeoplatyura eocenica n. sp. Cockerell 1921 predatory fungus gnat
USNM 66548